2 papers
math-ph2026
Fuzzy Geometries with an Internal Space
John W. Barrett, Joseph Burridge
The product of a non-commutative matrix spectral triple with a simple two-dimensional internal space is considered. This is interpreted as a non-commutative spacetime that contains…
math.QA2004
Observables in the Turaev-Viro and Crane-Yetter models
John W. Barrett, J. Manuel Garcia-Islas, Joao Faria Martins
We define an invariant of graphs embedded in a three-manifold and a partition function for 2-complexes embedded in a triangulated four-manifold by specifying the values of variable…